# std::basic_string<CharT,Traits,Allocator>::ends_with

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< cpp‎ | string‎ | basic string

constexpr bool ends_with( std::basic_string_view<CharT, Traits> sv ) const noexcept; | (1) | (since C++20)
constexpr bool ends_with( CharT ch ) const noexcept; | (2) | (since C++20)
constexpr bool ends_with( const CharT* s ) const; | (3) | (since C++20)

Checks if the string ends with the given suffix. The suffix may be one of the following:

1) A string view sv (which may be a result of implicit conversion from another `std::basic_string`).
2) A single character ch.
3) A null-terminated character string s.

All three overloads effectively return std::basic_string_view<CharT, Traits>(data(), size()).ends_with(x), where `x` is the parameter.

### Parameters

sv | - | a string view which may be a result of implicit conversion from another `std::basic_string`
ch | - | a single character
s | - | a null-terminated character string

### Return value

true if the string ends with the provided suffix, false otherwise.

### Notes

Feature-test macro | Value | Std | Feature
--- | --- | --- | ---
`__cpp_lib_starts_ends_with` | `201711L` | (C++20) | String prefix and suffix checking: starts_with() and ends_with()

### Example

Run this code

    #include <cassert>
    #include <string>
    #include <string_view>

    int main()
    {
        using namespace std::literals;

        const auto str = "Hello, C++20!"s;

        assert
        (""
            && str.ends_with("C++20!"sv)  // (1)
            && !str.ends_with("c++20!"sv) // (1)
            && str.ends_with("C++20!"s)   // (1) implicit conversion string to string_view
            && !str.ends_with("c++20!"s)  // (1) implicit conversion string to string_view
            && str.ends_with('!')         // (2)
            && !str.ends_with('?')        // (2)
            && str.ends_with("C++20!")    // (3)
            && !str.ends_with("c++20!")   // (3)
        );
    }

### See also

starts_with (C++20) | checks if the string starts with the given prefix (public member function)
starts_with (C++20) | checks if the string view starts with the given prefix (public member function of `std::basic_string_view<CharT,Traits>`)
ends_with (C++20) | checks if the string view ends with the given suffix (public member function of `std::basic_string_view<CharT,Traits>`)
contains (C++23) | checks if the string contains the given substring or character (public member function)
contains (C++23) | checks if the string view contains the given substring or character (public member function of `std::basic_string_view<CharT,Traits>`)
compare | compares two strings (public member function)
substr | returns a substring (public member function)

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